Re: [development] D6 Cleaning up on module uninstall

[jeff]

Good point. I think the first decision someone needs to make in this 
case is whether they want their content type and fields to depend on CCK 
being present. It's possible either way, of course, but a whole lot more 
work.

Victor wrote:
One way to avoid this whole problem would be to adopt an everything in 
code process (either through features or leaning heavily on the 
installation api module and bulk export modules).

That way, updates are all like module updates.

See http://nuvole.org/blog/2010/aug/24/features-based-development-workflow

The technique works whether you use features or not.